Date: Tue, 12 Dec 2000 15:42:31 -0200
From: secure@CONECTIVA.COM.BR
To: BUGTRAQ@SECURITYFOCUS.COM
Subject: [CLA-2000:357] Conectiva Linux Security Announcement –
rp-pppoe
CONECTIVA LINUX SECURITY ANNOUNCEMENT
PACKAGE : rp-pppoe
SUMMARY : Denial of service
DATE : 2000-12-12 15:41:00
ID : CLA-2000:357
RELEVANT
RELEASES : 6.0
DESCRIPTION
rp-pppoe is an userspace PPPoE client mainly used with ADSL
connections which require PPP.
The version distributed with Conectiva Linux 6.0 has a security
problem which, if exploited, would cause the connection to be
dropped.
If rp-pppoe receives a crafted TCP segment with an option where the
option-length field is zero (illegal), the program would enter an
infinite loop and the connection would time-out and be dropped.
SOLUTION
All rp-pppoe users should upgrade.
We would like to thank David F. Skoll for releasing a new
version and to Robert Schlabbach for reporting the vulnerability to
him.
DIRECT DOWNLOAD LINKS TO THE UPDATED PACKAGES
ftp://atualizacoes.conectiva.com.br/6.0/SRPMS/rp-pppoe-2.5-1cl.src.rpm
ftp://atualizacoes.conectiva.com.br/6.0/RPMS/rp-pppoe-2.5-1cl.i386.rpm
ADDITIONAL INSTRUCTIONS
Users of Conectiva Linux version 6.0 or higher may use apt to
perform upgrades:
– add the following line to /etc/apt/sources.list if it is not
there yet (you may also use linuxconf to do this):
rpm [cncbr] ftp://atualizacoes.conectiva.com.br
6.0/conectiva updates
- run: apt-get update
- after that, execute: apt-get upgrade
Detailed instructions reagarding the use of apt and upgrade
examples can be found at
http://distro.conectiva.com.br/atualizacoes/#apt?idioma=en
All packages are signed with Conectiva’s GPG key. The key can be
obtained at http://www.conectiva.com.br/contato